'''Entrance Pupil''' The special point that you have to rotate your camera around, to avoid parallax errors. Commonly referred to as the [[Nodal Point]], which see for more information.

+

'''[[Entrance pupil]]''' The special point that you have to rotate your camera around, to avoid parallax errors. Commonly referred to as the [[Nodal Point]] or better [[no-parallax point]], which see for more information.

'''[[Equirectangular Projection]]''' A projection capable of mapping the entire sphere to a rectangle with 2:1 aspect ratio.

'''[[Equirectangular Projection]]''' A projection capable of mapping the entire sphere to a rectangle with 2:1 aspect ratio.